Question

Before a collision, the x-momentum of an object is 8.0 × 103 kilogram meters/second, and its y-momentum is 1.2 × 104 kilogram meters/second. What is the magnitude of its total momentum after the collision?

A. 1.4 × 104 kilogram meters/second
B. 2.0 × 104 kilogram meters/second
C. 3.2 × 104 kilogram meters/second
D. 5.7 × 104 kilogram meters/second

Answer 1

It depends upon what it collides with, and what type of collision it is. The momentum of "the object" will be changed.

All you can say is what the magnitude of the total momentum before the collision. It is about 1.44*10^4 kg m/s

I am amazed that people or schools are being paid to ask nonsensical questions like this.